Sapindus n. : A genus of tropical and subtropical trees with pinnate leaves and panicled flowers. The fruits of some species are used instead of soap, and their round black seeds are made into necklaces.

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Taxonomy
Sapindus, Soap, nuts, species, Soapberry, unranked, saponins, genus, Soapnut, free encyclopedia, treatment, spermicidal, Indian plants, search, Sapindus marginatus, centimetres, contraceptive, China.

Defination from the web:
Sapindus is a genus of about five to twelve species of shrubs and small trees in the maple family, Sapindaceae, native to warm temperate to ... Sapindus emarginatus leaves in Hyderabad, India. ... Sapindus emarginatus soap nut in Hyderabad, India. Soap nuts are among the list of ...